A kind of nickel-cobalt-manganese network structure precursor and nickel-cobalt-manganese composite oxide powder and its preparation method and application

A network structure, nickel-cobalt-manganese technology, applied in the field of materials, can solve the problems of low initial charge and discharge efficiency, and the power performance of materials cannot be effectively exerted, and achieve the effect of improving low-temperature power performance
CN112142123BActive Publication Date: 2022-05-20XTC NEW ENERGY MATERIALS(XIAMEN) LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XTC NEW ENERGY MATERIALS(XIAMEN) LTD
Publication Date
2022-05-20

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Abstract

The invention belongs to the field of materials, and relates to a network structure precursor and composite oxide powder, a preparation method and application thereof. The precursor of the network structure includes a loose inner core and a loose outer shell covering the surface of the loose inner core. The main component of the loose inner core is divalent nickel-cobalt-manganese composite hydroxide, and the main component of the loose outer shell is three A nickel-cobalt-manganese composite hydroxide, and the particle size of the nickel-cobalt-manganese network structure precursor is 2-30 μm. The lithium-ion battery corresponding to the precursor of the network structure provided by the present invention has a first-time charge-discharge efficiency of ≥95% at 0.2C and a first-time charge-discharge efficiency of ≥92% at 10C under low temperature (‑10°C) conditions, which can improve low-temperature power performance , with great industrial application prospects.
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Description

technical field

[0001] The invention belongs to the field of materials, and in particular relates to a precursor of nickel-cobalt-manganese network structure, nickel-cobalt-manganese composite oxide powder and a preparation method and application thereof. Background technique

[0002] With the application of lithium-ion batteries in electric vehicles, lithium-ion battery cathode materials have received extensive attention. The performance of lithium-ion battery cathode materials directly affects the use and promotion of electric vehicles, and the development of high-endurance, high-safety, low-cost The cathode material is the main direction of future development. The main directions of vehicle-mounted cathode materials are lithium iron phosphate, multi-component materials, and lithium manganese oxide. Among them, lithium iron phosphate is widely used in the EV market due to its high safety, long cycle and low cost. With the advancement of technology, multi-component materi...

Claims

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